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Finding the Fourth Proportional to 75,353.46, 103,986.68 and 43,087.74

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Solution

The fourth proportional to 75,353.46, 103,986.68 and 43,087.74 is: 59,460.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,353.46 : 103,986.68 = 43,087.74 : x
  2. Step 2: Convert to fraction form
    75,353.46/103,986.68 = 43,087.74/x
  3. Step 3: Cross multiply
    75,353.46x = 103,986.68 × 43,087.74
  4. Step 4: Simplify right side
    75,353.46x = 4,480,550,815.86
  5. Step 5: Solve for x
    x = 4,480,550,815.86/75,353.46
  6. Step 6: Final answer
    x = 59,460.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.